Baigent, M., Cavey, C., & Robinson, N. (2010). English unlimited: Elementary. Self-study Pack. Workbook with DVD-ROM. A2. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Baigent, Maggie, Chris Cavey, agus Nick Robinson. English Unlimited: Elementary. Self-study Pack. Workbook with DVD-ROM. A2. Cambridge: Cambridge University Press, 2010.
Lua MLA (9ú heag.)Baigent, Maggie, et al. English Unlimited: Elementary. Self-study Pack. Workbook with DVD-ROM. A2. Cambridge University Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.